DS1302，MEGA16，带74HC595的LED数码管显示屏制作万年历

本是古典何须时尚 2022-08-06 01:08 264阅读 0赞

</pre><pre name="code" class="cpp">#include <mega16.h>
    #include <delay.h>
    // DS1302 Real Time Clock functions
    #asm
       .equ __ds1302_port=0x1B ;PORTA
       .equ __ds1302_io=5
       .equ __ds1302_sclk=4
       .equ __ds1302_rst=6
    #endasm                                                                                                                                 ,
    #include <ds1302.h>
    
    
    // SPI functions
    #include <spi.h>
    #define RCK PORTB.4
    #define nOE PORTB.3
    #define set PIND.2
    #define add PIND.3
    // Declare your global variables here
    
    
    void main(void)
    {
        int i;
        unsigned char h,m,s,flag;
        unsigned char date,date1,date2,month,month1,month2,year;
        unsigned char hour1,hour2,minute1,minute2;
        unsigned char a[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x48,0x40};
    // Declare your local variables here
    
    
    // Input/Output Ports initialization
    // Port A initialization
    // Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In 
    // State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T 
    PORTA=0x00;
    DDRA=0x00;
    
    
    // Port B initialization
    // Func7=Out Func6=In Func5=Out Func4=Out Func3=Out Func2=In Func1=In Func0=In 
    // State7=0 State6=T State5=0 State4=0 State3=0 State2=P State1=P State0=T 
    PORTB=0x06;
    DDRB=0xB8;
    
    
    // Port C initialization
    // Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In 
    // State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T 
    PORTC=0x00;
    DDRC=0x00;
    
    
    // Port D initialization
    // Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In 
    // State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T 
    PORTD=0x00;
    DDRD=0x00;
    
    
    // Timer/Counter 0 initialization
    // Clock source: System Clock
    // Clock value: Timer 0 Stopped
    // Mode: Normal top=0xFF
    // OC0 output: Disconnected
    TCCR0=0x00;
    TCNT0=0x00;
    OCR0=0x00;
    
    
    // Timer/Counter 1 initialization
    // Clock source: System Clock
    // Clock value: Timer1 Stopped
    // Mode: Normal top=0xFFFF
    // OC1A output: Discon.
    // OC1B output: Discon.
    // Noise Canceler: Off
    // Input Capture on Falling Edge
    // Timer1 Overflow Interrupt: Off
    // Input Capture Interrupt: Off
    // Compare A Match Interrupt: Off
    // Compare B Match Interrupt: Off
    TCCR1A=0x00;
    TCCR1B=0x00;
    TCNT1H=0x00;
    TCNT1L=0x00;
    ICR1H=0x00;
    ICR1L=0x00;
    OCR1AH=0x00;
    OCR1AL=0x00;
    OCR1BH=0x00;
    OCR1BL=0x00;
    
    
    // Timer/Counter 2 initialization
    // Clock source: System Clock
    // Clock value: Timer2 Stopped
    // Mode: Normal top=0xFF
    // OC2 output: Disconnected
    ASSR=0x00;
    TCCR2=0x00;
    TCNT2=0x00;
    OCR2=0x00;
    
    
    // External Interrupt(s) initialization
    // INT0: Off
    // INT1: Off
    // INT2: Off
    MCUCR=0x00;
    MCUCSR=0x00;
    
    
    // Timer(s)/Counter(s) Interrupt(s) initialization
    TIMSK=0x00;
    
    
    // USART initialization
    // USART disabled
    UCSRB=0x00;
    
    
    // Analog Comparator initialization
    // Analog Comparator: Off
    // Analog Comparator Input Capture by Timer/Counter 1: Off
    ACSR=0x80;
    SFIOR=0x00;
    
    
    // ADC initialization
    // ADC disabled
    ADCSRA=0x00;
    
    
    // SPI initialization
    // SPI Type: Master
    // SPI Clock Rate: 2000.000 kHz
    // SPI Clock Phase: Cycle Start
    // SPI Clock Polarity: Low
    // SPI Data Order: MSB First
    SPCR=0x50;
    SPSR=0x00;
    
    
    // TWI initialization
    // TWI disabled
    TWCR=0x00;
    
    
    // DS1302 Real Time Clock initialization
    // Trickle charger: Off
    rtc_init(0,0,0);
    nOE = 0;
    flag=0;
    //rtc_set_time(17,19,30);
    //rtc_set_date(4,11,14);
    while (1)
          {
          // Place your code here
    
    
          end1:;
              for(i=0;i<50;i++)
                {   
                    rtc_get_time(&h,&m,&s);
                    hour1=h/10;   //小时十位
                    hour2=h%10;   //个位
                    minute1=m/10;
                    minute2=m%10;
                    if(set==0)
                    {
                        flag=(flag+1)%5;              
                    }
    
    
                    //设置小时，闪烁
                    if((s%2==0)&&flag==1)
                    { 
                        spi(a[hour1]);
                        spi(a[hour2]);
                        //调时间
                        if(add==0)
                        {
                            rtc_get_time(&h,&m,&s);
                            h=(h+1)%24;
                            rtc_set_time(h,m,s);    
                        }
                    }
                    else if((s%2==1)&&flag==1)
                    {
                        spi(0);
                        spi(0);
                    }else
                    {
                        spi(a[hour1]);
                        spi(a[hour2]);
                    }
                    
                    //冒号
                    if(s%2)        
                    {
                        spi(a[10]);
                    }else
                    {
                        spi(0);
                    }
                    
                    
                    //设置分钟，闪烁
                    if((s%2==0)&&flag==2)
                    {
                        spi(a[minute1]);
                        spi(a[minute2]);
                        if(add==0)
                        {
                            rtc_get_time(&h,&m,&s);
                            m=(m+1)%60;
                            rtc_set_time(h,m,s);   
                        }
                    }else if((s%2==1)&&flag==2)
                    {
                        spi(0);
                        spi(0); 
                    }else
                    {
                        spi(a[minute1]);
                        spi(a[minute2]);
                    }
                    //spi(1);
                    RCK = 1;       //上升沿触发
                    delay_us(100);
                    RCK = 0;
                          
                    delay_ms(100);
                    if(flag==1||flag==2)
                    {
                        goto end1;
                    }else if(flag==3||flag==4)
                    {
                        goto end2;
                    }
                }
            
            
    
    
            //显示年月日
            end2:;
                for(i=0;i<50;i++)
                {
                    rtc_get_time(&h,&m,&s);
                    rtc_get_date(&date,&month,&year);
                    month1=month/10;
                    month2=month%10;
                    date1=date/10;
                    date2=date%10;
                    if(set==0)
                    {
                        flag=(flag+1)%5;              
                    }
                    
                    //设置月份，闪烁
                    if((s%2==0)&&flag==3)
                    {
                        spi(a[month1]);
                        spi(a[month2]);
                        if(add==0)
                        {
                            rtc_get_date(&date,&month,&year);
                            month=(month+1)%12;
                            if(month==0)
                            {
                                month=12;
                            }
                            rtc_set_date(date,month,year);   
                        }
                    }else if((s%2==1)&&flag==3)
                    {
                        spi(0);
                        spi(0); 
                    }else
                    {
                        spi(a[month1]);
                        spi(a[month2]);
                    }
                    spi(a[11]);
                    
                    //设置日期
                    if((s%2==0)&&flag==4)
                    {
                        spi(a[date1]);
                        spi(a[date2]);
                        if(add==0)
                        {
                            rtc_get_date(&date,&month,&year);
                            //date=(date+1)%31;
                            switch(month)
                            {
                                case 1: case 3: case 5: case 7: case 8: case 10: case 12:
                                date=(date+1)%31;
                                if(date==0)
                                {
                                    date=31;
                                }
                                break;
                                case 4: case 6: case 9: case 11:
                                date=(date+1)%30;
                                if(date==0)
                                {
                                    date=30;
                                }
                                break;
                                case 2:
                                if((year%4==0)&&(year%100!=0))
                                {
                                    date=(date+1)%28;
                                    if(date==0)
                                    {
                                        date=28;
                                    }
                                }else
                                {
                                    date=(date+1)%29;
                                    if(date==0)
                                    {
                                        date=29;
                                    }
                                }break;
                                
                            }
                            
                            rtc_set_date(date,month,year);   
                        }
                    }else if((s%2==1)&&flag==4)
                    {
                        spi(0);
                        spi(0); 
                    }else
                    {
                        spi(a[date1]);
                        spi(a[date2]);    
                    }
                    RCK = 1;
                    delay_us(100);
                    RCK = 0;
                          
                    delay_ms(100);
                    if(flag==3||flag==4)
                    {
                        goto end2;
                    }else if(flag==1||flag==2)
                    {
                        goto end1;
                    }
                }
                
            
          }
    }